Cylinder device



FIG. 1 is a perspective view of a cylinder device showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a left side elevation view thereof, the right side elevation being the mirror image;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevation view of a cylinder device showing a second embodiment of my new design; and,

FIG. 7 is a left side elevation view thereof, the right side elevation being the mirror image.

The broken lines in the drawing depict environmental subject matter only and forms no part of the claimed design. 

CLAIM The ornamental design for a cylinder device, as shown and described. 